气候变化领域集成服务门户(CCPortal): Effects of rainfall on the weekday traffic flow in major cities of the Beijing-Tianjin-Hebei region, China, in 2021

CCPortal

DOI	10.1016/j.accre.2022.11.009
	Effects of rainfall on the weekday traffic flow in major cities of the Beijing-Tianjin-Hebei region, China, in 2021
	Xiong, Ming -Ming; Han, Zhen-Yu; Lu, Bo; Guo, Jun; Xu, Shu; Yang, Yan-Juan; Huang, He
发表日期	2022
ISSN	1674-9278
起始页码	858
结束页码	867
卷号	13 期号:6 页码:10
英文摘要	Rainfall can bring uncertainties to the traffic flow and influence the normal function of urban transportation systems. The impact of precipitation on the urban traffic flow, especially the different impacts among cities and areas within a city, is worth investigating. Here, we analysed the impact of precipitation on the traffic flow in the urban areas of the Beijing-Tianjin-Hebei region by comparing the traffic flow in nonprecipitation and rainy weather with different hourly precipitation intensities in 2021. The increase in the travel time index (TTI) is chosen to represent the influence of precipitation on the transportation system. The results show that the maximum of the average TTI increases on the city scale under various rainfall intensities by 3.3%, 6.6% and 10.8% in Beijing, Tianjin and Shijiazhuang, respectively. In general, the increase in the TTI contributed by precipitation is the greatest at morning and afternoon peak hours, and the traffic congestion degree increases with the rainfall intensity. However, in the morning peak, afternoon peak and midday hours in Beijing and Tianjin, the influences of the weak rainfall intensity on the traffic flow are generally great, whereas the traffic congestion degree caused by heavy precipitation is relatively low. Particularly, in morning peak hours, the congestion reduction reaches approximately 2%, which may be related to the spatial difference in the impacts of precipitation on the traffic flow and the changes in people's travel intention under different rainfall intensities. The findings can help better understand the relationship between rainfall and urban traffic flow characteristics and also potentially contribute to the development of impactoriented climate predictions.
英文关键词	Rainfall intensity; Urban traffic flow; Beijing-Tianjin-Hebei region; AutoNavi map road condition data
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000923947800001
来源期刊	ADVANCES IN CLIMATE CHANGE RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273970
作者单位	China Meteorological Administration
推荐引用方式 GB/T 7714	Xiong, Ming -Ming,Han, Zhen-Yu,Lu, Bo,et al. Effects of rainfall on the weekday traffic flow in major cities of the Beijing-Tianjin-Hebei region, China, in 2021[J],2022,13(6):10.
APA	Xiong, Ming -Ming.,Han, Zhen-Yu.,Lu, Bo.,Guo, Jun.,Xu, Shu.,...&Huang, He.(2022).Effects of rainfall on the weekday traffic flow in major cities of the Beijing-Tianjin-Hebei region, China, in 2021.ADVANCES IN CLIMATE CHANGE RESEARCH,13(6),10.
MLA	Xiong, Ming -Ming,et al."Effects of rainfall on the weekday traffic flow in major cities of the Beijing-Tianjin-Hebei region, China, in 2021".ADVANCES IN CLIMATE CHANGE RESEARCH 13.6(2022):10.